PubMed · 17197485
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S Stanojevic, A Wade, T J Cole, J Stocks. 2007. Population-specific reference equations?. https://doi.org/10.1183/09031936.00119606
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During the 20th century, the evolution of the biological standard of living in Colombia was a tropical success story from the point of view of the secular increase in height as well as the reduction of inequality. During the period 1905-1985 the average height of females and males increased by nearly 9 cm on the basis of 9 million records examined from National Identification Cards. We also study the evolution of height of Colombians on the basis of passport records. The elite group of passport holders was much taller than average, and remained stable for the birth cohorts of 1870-1919. In the early 20th century the height of passport recipients was 168.7 cm (men) and 158 cm (women) compared with 162 cm and 150 cm for heights in the national ID cards. The results also show that Colombians experienced significant regional and intrapersonal convergence in height.
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The current studies aimed at determining physical fitness indices and anthropometrics profiles of school children with sickle cell trait (SCT) and sickle cell disease (SCD). Male school children (150) comprising 3 Groups participated in the studies. Group 1 has 50 normal healthy controls, while Groups 2 and 3 each has 50 children who were suffering from SCT and SCD, respectively. Anthropometrics measurement and parameters of physical fitness were assessed in all subjects. All children were also subjected to a 5-min running exercise test on a flat motorized treadmill at speed corresponding to 5 km/hr. Throughout the test, heart rate was monitored and recorded during exercise and for 10-min during recovery. Blood lactate was measured before and 5 min following the completion of test. The mean values of lean body mass and height were lower in the SCD children (P < 0.05) compared with the healthy subjects and SCT individuals. Children with SCD exhibited a higher mean value (P < 0.05) for percent body fat and fat mass than the normal healthy subjects and SCT individuals. Although all groups tolerated well the treadmill exercise protocol, the SCD group exhibited higher (P < 0.05) mean values of heart rate during exercise than those observed in the SCT and normal control children. In addition, SCD children showed higher serum lactate values before and after treadmill exercise compared to the other groups. Children with SCD exhibit high level of adiposity; low level of fitness and their exercise performance appears to be physiologically more stressful as indicated by heart rate and blood lactate concentration responses.